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March 1, 1979Archives of Disease in ChildhoodOpen Access

Clinical evaluation and comparison of the Infrasonde, Arteriosonde, and mercury sphygmomanometer in measurement of blood pressure in children.

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Why the study?

How do blood pressure measurements from the Infrasonde, Arteriosonde, and mercury sphygmomanometer compare to direct intra-arterial measurements in children?

Population

50 children aged between 4 days and 14 years

Comparison

Blood pressure measurement using Infrasonde… vs Directly measured intra-arterial blood pressures

Design

Cross-sectional, Estimates made blindly

Authors

JSJ M SavageRoyal Hospital for ChildrenMDM J DillonUniversity of Colorado HospitalJTJ F TaylorDuke Medical Center

Discussion

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Overview

Supports cautious pediatric non-invasive BP use; leaves open prospective validation needs for Infrasonde diastolic accuracy.

Key Points

  • To assess and compare the accuracy of the Infrasonde, Arteriosonde, and standard mercury sphygmomanometer against direct intra-arterial blood pressure measurements in children.
  • Blinded systolic and diastolic blood pressure readings using three noninvasive devices were compared to simultaneous direct intra-arterial measurements.
  • Evaluated in N=50 pediatric patients ranging in age from 4 days to 14 years.
  • Systolic and diastolic estimates from all three devices demonstrated highly significant correlations with simultaneous intra-arterial pressure measurements (P < 0.001).
  • Infrasonde diastolic measurements were least accurate with a regression line slope differing significantly from unity (y = 0.54x + 29.53), while the mercury sphygmomanometer failed to obtain diastolic readings in 11 small children.

Structured PICO

How do blood pressure measurements from the Infrasonde, Arteriosonde, and mercury sphygmomanometer compare to direct intra-arterial measurements in children?

P
Population
50 children aged between 4 days and 14 years
I
Intervention
Blood pressure measurement using Infrasonde, Arteriosonde, and mercury sphygmomanometer
C
Comparator
Directly measured intra-arterial blood pressures
O
Outcome
Correlation of systolic and diastolic estimates with simultaneous intra-arterial measurementssurrogate

While all three non-invasive devices correlate significantly with intra-arterial blood pressure in children, the Arteriosonde is particularly valuable when Korotkoff sounds are difficult to hear, whereas the Infrasonde is less accurate for diastolic pressure.

Limitations

  • In 11 small children a satisfactory diastolic estimate could not be obtained with the mercury sphygmomanometer

Cite This Study

Savage et al. (1979) studied this question.

synapsesocial.com/papers/6a1dde5cef3fa0b4c0ef7dc7https://doi.org/10.1136/adc.54.3.184
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Also Consider

Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Assessment of Doppler ultrasound to measure systolic and diastolic blood pressures in infants and young children.1975 · 31 citations
  2. 2Measurement of Blood-pressure: Comparison of Intra-arterial and Cuff Values1964 · 131 citations
  3. 3Blood pressure and its significance in childhood1978 · 15 citations